Intuitive's robotic surgery core principle reduces tissue impact
A central technology in Intuitive's robotic systems, the remote center of motion, enables precise control of surgical instruments while minimizing pressure on patient tissues. This aims to reduce complications.
Intuitive Surgical has developed a solution to challenges in minimally invasive surgery through its robotic systems. The company's da Vinci surgical robot utilizes the principle of remote center of motion, designed to reduce stress on patient tissues as surgical instruments move within the body.
In traditional robotic surgery, instruments are inserted via cannulas, narrow tubes. As these cannulas move during procedures, they can cause stretching or damage to tissues. Intuitive engineers identified this issue over 20 years ago during the development of the da Vinci systems. The company initially licensed a patent for the remote center of motion, originally developed by IBM, and subsequently enhanced the technology.
"We designed the mechanism so that when the robot moves it's not going to take [the cannula] and try to force it side to side," explained Intuitive fellow Tom Cooper. "It's just going to tilt the cannula around the remote center, so there’s less pressure on the tissue." This mechanism, employing a system of metal belts and pulleys, ensures the cannula pivots around a fixed point in the patient's body wall, reducing friction and enhancing instrument precision.
The technology ensures the cannula's movement pivots around a fixed point, minimizing tissue strain and allowing for smaller incisions. This principle is integrated into many of Intuitive's systems, including the da Vinci SP single-port robotic system. Cooper has also been instrumental in developing advancements that provide surgeons with greater maneuverability in confined spaces.